PP-2500HY O lo'o gaosia e Saina Energy Group Ningxia Coal Industry Co., Ltd, fa'avae i luga ole NTH's Novolen gas-phase polypropylene technology.O le oloa e gaosia i le polymerized propylene ma le ethylene e avea ma mea mata'itū autu, I lalo o le gaioiga a se fa'amalosi, e ala i le faagasologa o le polymerization, vavaeeseina, granulation, afifiina, ma isi.